Bonding to dentin as a function of air-stream temperatures for solvent evaporation
AUTOR(ES)
Marsiglio, Andréia Aquino, Almeida, Júlio César Franco, Hilgert, Leandro Augusto, D'Alpino, Paulo Henrique Perlatti, Garcia, Fernanda Cristina Pimentel
FONTE
Brazilian Oral Research
DATA DE PUBLICAÇÃO
2012-06
RESUMO
This study evaluated the influence of solvent evaporation conditions of acid-etching adhesives. The medium dentin of thirty extracted human third molars was exposed and bonded to different types of etch-and-rinse adhesives: 1) Scotchbond Multi-Purpose (SBMP) ; water-based; 2) Adper Single Bond 2 (SB) ; ethanol/water-based, and 3) Prime & Bond 2.1 (PB) ; acetone-based. Solvents were evaporated at air-drying temperatures of 21ºC or 38ºC. Composite buildups were incrementally constructed. After storage in water for 24 h at 37ºC, the specimens were prepared for bond strength testing. Data were analyzed by two-way ANOVA and Tukey's test (5%). SBMP performed better when the solvents were evaporated at a higher temperature (p < 0.05). Higher temperatures did not affect the performance of SB or PB. Bond strength at room temperature was material-dependent, and air-drying temperatures affected bonding of the water-based, acid-etching adhesive.
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